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Finding the Fourth Proportional to 318,102.35, 438,981.71 and 174,863.27

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Solution

The fourth proportional to 318,102.35, 438,981.71 and 174,863.27 is: 241,311.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,102.35 : 438,981.71 = 174,863.27 : x
  2. Step 2: Convert to fraction form
    318,102.35/438,981.71 = 174,863.27/x
  3. Step 3: Cross multiply
    318,102.35x = 438,981.71 × 174,863.27
  4. Step 4: Simplify right side
    318,102.35x = 76,761,777,503.93
  5. Step 5: Solve for x
    x = 76,761,777,503.93/318,102.35
  6. Step 6: Final answer
    x = 241,311.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.